Touch Screen Input Means Identification via Electromagnetic Field Sensing
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Solution Overview
Problem
Existing electronic devices require separate devices to identify various input means, and users must perform separate setting changes to input instructions, which is inconvenient and inefficient.
Innovation Solution
An electronic device method and apparatus that identifies input means without a separate device by acquiring sensing information through electromagnetic field variations, allowing indirect touch inputs to determine the input means and perform corresponding functions without additional settings, using a database to register and recognize input gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate device is attached to identify input means, then input means identification capability is improved, but device complexity increases
Solution Approach 1:
The patent merges the input means identification function into the existing touch screen device by utilizing the touch screen's sensing capabilities to detect electromagnetic field variations caused by different input means (finger, stylus, etc.). This eliminates the need for separate identification devices while maintaining the ability to recognize various input types.
Solution Approach 2:
The touch screen is designed to serve multiple functions: it acts as both the display interface and the sensing interface for identifying different input means. By detecting electromagnetic field variations at different positions and distances, the single touch screen component performs both display and input identification tasks.
2Measurement precision
If separate setting changes are performed to input instructions, then input accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically identifies the input means and determines the appropriate operation mode without requiring user intervention for setting changes. The touch screen detects electromagnetic field characteristics and autonomously selects the corresponding input mode (finger touch, stylus input, etc.), eliminating the need for manual configuration while maintaining accurate input recognition.
Solution Approach 2:
The patent pre-registers multiple input means and their corresponding operations in advance within the device. When an input is detected, the system compares the sensed electromagnetic field pattern against the pre-registered patterns and automatically executes the corresponding pre-configured operation, eliminating the need for real-time setting changes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to input instructions directly through recognized input means without additional devices or settings, enhancing user experience by simplifying input operations and integrating input and display functions on a single touch screen.
Implementation Method 1
acquiring area information of the 1st input means sensed on the touch screen through an electromagnetic field varying in accordance with the indirect touch input
Data Source
AI summary
A method configured to process an indirect touch or direct touch input to a touch screen with various input means is provided. The method includes, if a 1st input means is positioned in a 1st position spaced apart from a touch screen, acquiring 1st sensing information based on the 1st position, if the 1st input means is positioned in a 2nd position spaced apart from the touch screen, acquiring 2nd sensing information based on the 2nd position, and identifying the 1st input means based on the acquired 1st sensing information and the acquired 2nd sensing information.